Patents by Inventor Mohammad Piltan

Mohammad Piltan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and technique employing a novel extractant to enhance recovery of gold and palladium from hydrochloric acid media
    Patent number: 8663584
    Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 4, 2014
    Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari
  • Method and Technique Employing a Novel Extractant to Enhance Recovery of Gold and Palladium from Hydrochloric Acid Media
    Publication number: 20120228151
    Abstract: An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed extractant disclosed eliminates the conventional multi-step process for such extraction by providing for an extraction method which uses a single solvent extraction reagent. Further enhancing the conventional multi step process, the conventional scrubbing stage is eliminated by a single stripping stage. The resulting solutions can be obtained from leaching many types of material such as copper anode slimes, the treatment of scrap such as electronic circuit boards and plating effluents, PGM, or refractory gold ores.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 13, 2012
    Inventors: Loghman Moradi, Hiwa Salimi, Mohammad Piltan, Issa Yavari